corscaden



(No Mod1. a Sheets-Sheet 1.

G. E. HART & T, GORSCADEN.

GAGE FOR PRESS SLIDES.

No. 425,131. Patented Apr. 8, 1890.

(N9 Model.) 3 Sheets-Sheet 2..

0. B. HART & T. GORSGADEN.

' GAGE FOR PRESS SLIDBS.

No. 425,131. Patented Apr. 8, 1890.

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Illii aKWa/MQ 2 m (No Modl.) a Sheets-Shet a. G. E. HART 81; T.CORSGADEN.

GAGE FOR PRESS SLIDES.

No. 425,131. Patented Apr. 8, 1890.

utllluw UNITED STATES PATENT" OFFICE.

CHARLES E. HART AND THOMAS CORSCADEN, OF NEIV BRITAIN, CONNECTI- CUT,ASSIGNORS TO THE STANLEY ORKS, OF SAME PLACE.

GAGE FOR PRESS-SLIDES.

SPECIFICATION forming part of Letters Patent No. 425,131, dated April 8,1890.

Application filed January 3, 1890. Serial No. 335,784. (No model.)

To all whom it may concern:

Be it known that we, CHARLES E. HART and THOMAS CORSOADEN, both citizensof the United States, residing at New Britain, in the 5 county ofHartford and State of Connecticut,

have invented certain new and useful Improvements in Gages forPress-Dies, of which the following is a specification.

Our invention relates to improvements in gages for press-dies of theclass adapted to gage the edges of the metal, and the objects of ourimprovement are to accurately center the stock with reference to the dieand to hold it firmly While being punched.

In the accompanying drawings, Figure 1 is a rear elevation and partialsection showing our gage and so much of a press as is necessary to showthe connection therewith. Fig. 2 is a side elevation thereof with someof the parts in vertical section. Fig. 3 is a plan .view of the lowerportion of said parts, the vertically-sliding racks being shown inhorizontal section on line a; a; of Fig. 1. Fig. iis a transversevertical section thereof, partly in elevation, the plane of sectionbeing indicated by the line 2 y, Fig. 1. Fig. 5 is a rear elevation andpartial section of our said improvement, with a modification of themechanism for operating said gages, and Fig. 6 is a vertical sectionthereof, partly in elevation, the plane of section being indicated bythe line a z in Fig. 5.

A designates the die-bed, B the dies, the punch-block, and D thepressslide, all of which, excepting in special features hereinafterdescribed, may be of any ordinary construction and adapted for use withany ordinary press.

Our improvement is specially adapted for use in feeding to a die andpunch plates or bars of metal of considerable length and width, and willbe found especially useful when the cutting-die and punch or dies andpunches extend over a considerable portion 45 of the length of thestock. As represented,

the stock is passed laterally through the press instead of from front torear.

Upon the die-bed A and upon each side of the die B we arrange twolongitudinal gages o 7 7, adapted to move to and from each other.

In the preferred construction these gages are provided at each end withan aperture 8, one

of which is shown in Fig. 3, the parts above it being broken away forthat purpose. WVe also provide four nuts 9, the same being arranged inpairs of right and left hand threads and provided upon their under sidewith pro-' jections 10, which enter the holes 8 in the gages, as shownin Fig. 2.

In suitable bearings 11 1l,bolted or otherwise firmly secured to the bedA, we arrange the shafts 12 12, each of which is provided with right andleft hand threads fitted to the nuts 9, as shown, whereby a rotarymotion of the shaft will carry said nuts in each pair to 6 5 or fromeach other. At one end of each shaft we secure the pinion 13, whichpinions mesh into and are operated by-the vertically-sliding racks 14:.Said racks are secured in any proper manner to the cross-bar 15, whichcross-bar is so connected with the press-slide as to be raised andlowered thereby. This we do by attaching to the press-slide B a socket16, containing a spring-pressed plun ger 1'7 for forcing said cross-bardownwardly 7 5 with the press-slide, and lugs 18, provided withadjusting-screws 19, for engaging the under side of said bar to elevateit. For the purpose of preventing the accidental displacement of thescrews 19 when adjusted, we provide said screws 19 with the setnuts 20.The spring 21 Within the socket 16 has a tendency to .keep the plunger17 projected from the socket, at the same time permitting it to yield incertain cases, while the head or nut 22 on 8 5 said plunger at the upperend of the socket prevents the spring from projecting the plunger beyonda certain limit.

A picker or takeoff 23 is secured to the die-bed A. by means of bolts24:, which pass through hollow blocks 25, which blocks hold the takeoffat the proper elevation. The gages 7 7 are slotted laterally at pointswhere the hollow blocks 25 pass through them, so that said blocks do notinterfere with the lateral 5 movement of the gages. The racks 1d 14 areguided in their vertical movement by means of upwardly-projectingsockets 26, that are formed on or stationarily secured to the diebed,one of which sockets is shown in vertical I00 section in Fig. 1. InFigs. 5 and 6 we have shown substantially the same gages, but with adifferent mechanism for communicating with the downward movement of thecross-bar to the gages 7 7. The levers 27 are slotted at their outerends to receive the under edge of the bar 15 and toothed at their innerends, as shown at 28 in Fig. 6, to engage with and operate companionlevers 29. These levers are pivoted on a fixed axis on a projection fromthe bed and provided on their under side with short arms 30 for enteringholes in the ends of the gages 7, whereby a movement of the levers 27will throw the gages 7 7 to or from each other. Bearing on the underedge at theouter ends of the levers 27 there are spring-pressedfollowers 31, which are actuated by springs 32, Fig. 6, within a socketon the bed A, to elevate said levers and crossbar 15 after eachdepression and thereby open the gages.

The parts are represented in the drawings as they appear when the gagesare closed upon the stock. \Vhen the press-slideis fully elevated, thenut or head 22 of the plunger 17 will rest upon the upper end of thesocket 1G and limit the projection of said plunger. As the press-slidedescends, the cross-bar 15 is forced downward by-the plunger 17, therebyforcing the gages 7 7 together, through the connecting mechanism betweensaid cross bar and gages, until the gages are firmly pressed uponopposite edges of the stock to bring the stock centrally over the dieand holdit firmlyin advance of any cutting action of the punch. Afterthe gages 7 7 come to a bearing, so that they can close no farther, thespring 21 permits the cross-bar l5 and plunger 17 to yield, so that thepress-slide may complete its stroke while the gages remain stationary.As the press-slide returns, the operating mechanism acts to open thegages 7 7 slightly, so that the stock may be moved along between thegages to a proper posit-ion [or being acted upon again, and the gagesare again forced against the stock, and so on repeatedly.

o claim as our invention 1. The combination of a press-slide 1),yielding plunger 17, connected thereto, the crossbar 15, a die-bed, thegages 7 7, and connect' ing mechanism between said cross-bar and gages,substantially as described, and for the purpose specified.

2. The combination of a die-bed, the gages 7 7, arranged to move to andfrom each other, connecting mechanism for positively moving said gages,a press-slide, and a yielding plunger for acting upon said connectingmechanism, substantially as described, and for the purpose specified.

3. The combination of the gages 7 7, nuts 9, engaging said gages, theshafts 12, having right and left hand threads within said nuts, thegears 13, and vertically-moving racks 14, operated through thepress-slide, substantially as described, and for the purpose specifled.

4:. The combination of: the gages 7 7, nuts 9, engaging therewith, theshafts 12, having right and left hand threads within said nuts, thegears 13, vertically-moving racks 14, a press-slide, and the yielijlingplunger operatively connected with said racks for depressing them,substantially as described, an d for the purpose specified.

5. The combination of a press-slide, the sockets 16, secured thereto,the spring 21 and plunger 17 within said socket, cross-bar 15, adie-bed, the gages 7 7, and comiecting mechanism between said crossbarand gages, substantially as described, and for the purpose specified.

CHARLES E. IlAR'l. THOMAS CORSCADEN. \Vitnesses:

G. L. REYNOLDS, ll. B. llUMASON.

